In the circuit shown in figure, the power which is dissipated as heat in the $6\,\Omega$ resistor is $6\,W$. What is the value of resistance $R$ in the circuit?................... $\Omega$
$6$
$10$
$13$
$24$
In the figure shown the power generated in $y$ is maximum when $y = 5\,\Omega $. Then $R$ is
The power dissipated in the circuit shown in the figure is $30\, Watts$. The value of $R$ is ............. $\Omega$
Two electric bulbs whose resistances are in the ratio of $1 : 2$ are connected in parallel to a constant voltage source. The powers dissipated in them have the ratio
The brightness of a bulb will be reduced, if a resistance is connected in
A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be